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ID 29559
file
title alternative
Experimental Research on Controlling the Effective Stress in Sand by Means of Seepage Force
creator
Tominaga, Koji
Sahara, Mamoru
NDC
Construction. Civil engineering
abstract
In order to satisfy the similarity of scales between model and prototype of foundation structure, the test equipments using hydraulic gradient method were developed, and the results of load tests on model piles performed by the test technique were reported (e. g. Zelikson, 1969; Taito, 1977; Shimazaki, 1978). The hydraulic gradient method is used to create artifical gravity (increasing of unit weight) inside porous media like sand. In their tests, however, it is apprehended that the friction forces are caused on the inner surface of test cylinder and uniform distribution of unit weights is not created within sand.

This paper presents the data of fundamental test on the effect of the above friction force and the results of test reducted the friction resistance by using the layer of teflon sheets and silicon grease. These experimental data are compared with analytical results from finite element method. The ratio of horizontal to vertical effective stress within sand measured during the tests are also discussed.
journal title
廣島大學工學部研究報告
volume
Volume 36
issue
Issue 1
start page
33
end page
41
date of issued
1987-12
publisher
廣島大學工學部
issn
0018-2060
ncid
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Engineering
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